condition mean min max 2 h after light 0.09100835 0.0 0.128522 6 h after light 0.1090125 0.0 0.207589 10 h after light 0.168133 0.0 0.354201 14 h after light 0.24977516666666666 0.106225 0.446465 18 h after light 0.39238616666666665 0.115887 0.737167 2 h after dark 0.4920053333333333 0.163003 0.88533